Abstract
B-series are a powerful tool in the analysis of Runge–Kutta numerical integrators and some of their generalizations (“B-series methods”). A general goal is to understand what structure-preservation can be achieved with B-series and to design practical numerical methods that preserve such structures. B-series of Hamiltonian vector fields have a rich algebraic structure that arises naturally in the study of symplectic or energy-preserving B-series methods and is developed in detail here. We study the linear subspaces of energy-preserving and Hamiltonian modified vector fields which admit a B-series, their finite-dimensional truncations, and their annihilators. We characterize the manifolds of B-series that are conjugate to Hamiltonian and conjugate to energy-preserving and describe the relationships of all these spaces.
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Communicated by Arieh Iserles.
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Celledoni, E., McLachlan, R.I., Owren, B. et al. Energy-Preserving Integrators and the Structure of B-series. Found Comput Math 10, 673–693 (2010). https://doi.org/10.1007/s10208-010-9073-1
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DOI: https://doi.org/10.1007/s10208-010-9073-1